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Modified polyethylene pipe and preparation method thereof

A polyethylene pipe and polyethylene resin technology, applied in the field of modified polyethylene pipes and their preparation, can solve the problems of poor ring stiffness, increased carbon emissions, and insufficient toughness of double-walled pipes, and achieve good impact resistance and super strength Chemical corrosion resistance, the effect of improving the ability of foundation settlement

Inactive Publication Date: 2014-11-19
KANGTAI PLASTIC SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the ring rigidity of the double-wall pipe processed by polyethylene is poor, the toughness is insufficient, waste resources, and increase carbon emissions

Method used

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  • Modified polyethylene pipe and preparation method thereof
  • Modified polyethylene pipe and preparation method thereof

Examples

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Effect test

preparation example Construction

[0034] The preparation method of above-mentioned modified polyethylene pipe, comprises the following steps:

[0035] a. Polyethylene resin, 50% chlorinated polyethylene, chlorinated polypropylene, 50% coupling agent, 50% compatibilizer, color masterbatch, light stabilizer , antioxidant, and anti-cracking resin were weighed in parts by weight, kneaded at 60-100°C for 5-20 minutes, cooled to 30-43°C, and spare material A was obtained;

[0036] b. Combine chlorinated polyvinyl chloride, lead-free stabilizer, lubricant, calcium stearate, remaining chlorinated polyethylene, processing aid, remaining compatibilizer, nanomaterial, and remaining coupling agent at 110 Stir at ~135°C for 15-30 minutes, then cool to 35-43°C, and obtain spare material B after granulation;

[0037] c. Blend spare material A and spare material B for 5-10 minutes, cool to 30-38°C after the temperature reaches 30-60°C, and extrude to obtain a modified polyethylene pipe.

[0038] Wherein, in the preparation ...

Embodiment 1

[0047] Modified polyethylene pipes with the following weight ratios:

[0048] 100 parts of polyethylene resin, 50 parts of chlorinated polyethylene, 20 parts of chlorinated polyvinyl chloride, 10 parts of chlorinated polypropylene, 5 parts of ethylene-propylene copolymer, 20 parts of activated nano calcium carbonate, 0.5 parts of white masterbatch, calcium 4 parts of zinc stabilizer, 2 parts of hindered amine light stabilizer, 1 part of maleic anhydride graft copolymer, 2 parts of phenolic antioxidant 1076, 2 parts of titanate coupling agent, 0.5 part of calcium stearate, 0.1 part of polyethylene wax, 3 parts of ethylene-octene copolymer.

[0049] Adopt following preparation method:

[0050] a, polyethylene resin, chlorinated polyethylene (50% of total parts), chlorinated polypropylene, titanate coupling agent (50% of total parts), maleic anhydride graft copolymer (total parts 50% of the number), white masterbatch, antioxidant 1076, hindered amine light stabilizer, ethylene-...

Embodiment 2

[0056] Modified polyethylene pipes with the following weight ratios:

[0057] 100 parts of polyethylene resin, 30 parts of chlorinated polyethylene, 25 parts of chlorinated polyvinyl chloride, 15 parts of chlorinated polypropylene, 20 parts of active nano mica, 0.5 parts of black color masterbatch, 2 parts of organotin stabilizer, diphenyl 2 parts of ketone light stabilizer, 5 parts of acrylic resin, 5 parts of acrylonitrile-butadiene-styrene graft, 5 parts of ethylene-vinyl acetate copolymer, 2 parts of phosphite antioxidant 168, silane 2 parts of coupling agent, 0.5 part of calcium stearate, 0.1 part of polyethylene wax, 0.1 part of paraffin wax, 3 parts of ethylene-hexene copolymer.

[0058] The preparation method and process parameters are the same as in Example 1.

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Abstract

The invention belongs to the field of a blowdown pipe and particularly relates to a modified polyethylene pipe and a preparation method thereof. The invention aims to solve the technical problems of poor ring stiffness, insufficient toughness, resource waste and increase of carbon emission of a double-wall pipe processed by polyethylene. To solve the technical problems, the adopted scheme is to provide the modified polyethylene pipe which comprises the following components by weight: 100 parts of polyethylene resin, 5 to 50 parts of chlorinated polyethylene, 5 to 50 parts of chlorinated polyvinyl chloride, 1 to 30 parts of chlorinated polypropylene, 1 to 50 parts of nano material, 0.1 to 3 parts of color masterbatch, 1 to 20 parts of processing aid, 0.1 to 5 parts of calcium stearate, 0.1 to 1 part of lubricant, 0.5 to 5 parts of light stabilizer, 0.5 to 5 parts of antioxidant, 1 to 15 parts of compatibilizer, 0.5 to 8 parts of lead-free stabilizer and 1 to 15 parts of anti-cracking resin. The invention also provides the preparation method of the modified polyethylene pipe. According to the modified polyethylene pipe provided by the invention, the ring stiffness is greatly improved and the modified polyethylene pip has good toughness and aging resistance.

Description

technical field [0001] The invention belongs to the field of sewage pipes, in particular to modified polyethylene pipes and a preparation method thereof. technical background [0002] With the continuous advancement of urbanization in our country, the construction of new countryside, the renovation of urban sewage projects that have been in disrepair, and the construction of low-rent housing, the demand for sewage pipes has expanded, and the performance requirements for bellows have also increased. is the impact strength. [0003] The flexural elastic modulus of polyethylene is 600-1000MPa. The double-wall corrugated pipe processed by polyethylene has the defect of poor ring stiffness. It is necessary to increase the thickness to increase the ring stiffness, which makes the product weight significantly increase, which wastes a lot of resources and increases Carbon emissions are harmful to people's health. [0004] At present, there is an urgent need to develop a modified p...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/28C08L27/24C08K13/06C08K9/00C08K3/34C08K3/26C08K3/30C08K3/22C08K7/02B29B9/06B29C47/92B29C48/92
CPCC08L23/06B29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K2201/011C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L23/286C08L27/24C08L23/28C08L23/0815C08L51/00C08K13/06C08K9/00C08K2003/265C08K5/098C08L33/04C08L55/02C08L23/0853C08L91/06C08K3/34
Inventor 林云青张双全郝洪波
Owner KANGTAI PLASTIC SCI & TECH GRP
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